AIIMS AIIMS Solved Paper-1999

  • question_answer
    XO chromosomal  abnormality in  humans cause:

    A)  Turners syndrome         

    B)         Downs syndrome

    C)         Drawins syndrome        

    D)         Klinefelters syndrome

    Correct Answer: A

    Solution :

    Turners syndrom was discovered by Turner in I1938. It is a case of monosomy\[2(n-1)\]in which one chromosome (sex chromosome) is missing (XO). Thus, an affected person contains only 45 chromosomes instead of 46. Symptoms or Turners syndrome includeinfertility, short statured, small uterus webbed I neck, puffy fingers, finger nails more convex and hairline at the back of the head is lower than normal.


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